1. Food grade silicone, Microwave safe 2. Used as menstrual cup/disc sterilizer, clean cup, and menstrual cup storage case 3. Cute Capsule shape design. 4. It works perfectly with any brand of menstrual cup and disc. 5. More Eco-friendly compared with plastic case 6. Integrated molding fine workmanship, no burr 7. Smooth touch surface treatment